fanfiction-batman:playacting by nex_et_nox

“So,” Jim said, “are you one of Wayne’s new kids?” Because only siblings acted that way toward each other, and it seemed like every time Gotham turned around, Bruce Wayne was adopting more kids. It was a reasonable question.

“What?” Jay asked. “No, I’m—” He paused. Very slowly, his head tilted as he looked over Jim’s shoulder in the most obvious way he possibly could.

Jim Gordon accidentally meets the "newest" member of the Wayne family.